$ git diff-tree --root --abbrev initial
444ac553ac7612cc88969031b02b3767fb8a353a
:000000 040000 0000000 da7a33f A	dir
:000000 100644 0000000 01e79c3 A	file0
:000000 100644 0000000 01e79c3 A	file2
$
